Hybrid catadioptric system for holographic and disk application

Yung Sung Lan*, Chung-Hao Tien

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In this paper, we reveal a new device for use as an optical data storage system. The system is made up of Cassegrain-like structures. The volume (35 × 20 × 20mm3) of the system is the size of a pickup head used in conventional optical storage. It has compatibility with several conventional optical disk technologies. Namely, the system provides a platform for integration with compact disc (CD), digital versatile disc (DVD), Blu-ray disc (BD) and holographic systems. The full width half maximums (FWHMs) of the spot size for a CD have been measured in this system and are 0.98 and 0.95 μm in the tangential and radial directions, respectively.

Original languageEnglish
Pages (from-to)3867-3869
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number6 B
StatePublished - 22 Jun 2007


  • Holographic recording
  • Optical recording

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